The proper spelling of "louis dufresne" is phonetically transcribed as lu-i du-fren. The initial "l" sound is pronounced like the "lu" in "lute", followed by the long "i" sound in "eye". The second name, "dufresne", is pronounced with a soft "d" sound, followed by the "u" sound in "put" and the French "e" sound heard in "petite". The final "ne" is pronounced with a nasal "n" sound followed by the schwa sound, transcribed as "ə".